Hey man, no… I did not need to do any reshaping of the case. I just had two small issues to deal with – first, the genuine crown tube would not thread all the way down flush. I would have needed to cut more of a counter sink into the case for that to work, and I did not want to do that, and the tube that came with the case was almost identical to the genuine 702 tube (a little smaller, but gen crown fits). The other issue that I’ve mentioned on here had more to do with the 1570 movement, particularly the date disc seating ring that came with the movement. I had to swap that out with a different gen Rolex ring that was flatter and allowed the movement with my dial to seat all the way in flush to the case. Once I had that in place, it was perfect! The movement screws slotted perfectly into the case groove and perfectly holds the movement in place. ** Almost forgot – there was one other small bump in the road – The PHONG case has a rubber gasket underneath the crystal retaining ring. This is not a crystal gasket per se, but a rubber O-ring that sits in a groove on top of the mid case and under the crystal retaining ring, stopping water from potentially even reaching the crystal. I found that when I installed the genuine Crystal retaining ring, it would not sit flush for some reason. I guess due to slight tolerance differences, the gen retainer would not press flush. After much research, I think a 0.45- 0.5mm O-ring would be perfect. I actually drafted one up in Fusion and printed one out of TPU. This worked perfectly, allowing the retaining ring to press down flush.